02-09 Kisei well on its way

The key moment in the third game seems around move 168 of white. With this move white decides to save the cutting stones in the center because following the alternative as in the first diagram seems to give black a win in points.

With 169 black could have compromised as in the second diagram. Both marked groups are captured, leaving a rather simple endgame with a slight margin for black. White probably will continue C (to remove the A, C, D cut), which enables black to take the big point at B.

However, both players like complications (for different reasons) so the game took a completely different course from here...